From 969bb0a0f725d5cefb7493b6f7a58db8456e504f Mon Sep 17 00:00:00 2001
From: Priec <filippriec@gmail.com>
Date: Mon, 2 Feb 2026 23:56:45 +0100
Subject: [PATCH] skoro

---
 src/lib.rs | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index a3a8129..7679d19 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -126,7 +126,32 @@ impl Index{
         } else {
             Err(())
         }
+    }
 
+    pub fn daj_predmet_podla_kodu(&self, kod: &str) -> Result<Option<&Predmet>, ()> {
+        if let Some(vrat) = self.predmety.iter().find(|x| x.kod == kod) {
+            return Ok(Some(vrat));
+        } else {
+            Err(())
+        }
+    }
+
+    pub fn daj_predmety_vyucujuceho(&self, menov: &str) -> Vec<&Predmet> {
+        let vec: Vec<_> = self.predmety.iter().filter(|x| x.vyucujuci.contains(&menov.to_string())).collect();
+        vec
+    }
+
+    pub fn daj_predmety_podla_povinnosti(&self, tp: TypPovinnosti) -> Vec<&Predmet> {
+        let vec: Vec<_> = self.predmety.iter().filter(|x| x.typ_povinnosti == tp).collect();
+        vec
+    }
+
+    pub fn formatuj_predmety_podla_znamky(&self, znamka: char) -> Vec<String> {
+        self.predmety
+            .iter()
+            .filter(|p| p.znamka == znamka)
+            .map(|p| format!("{}", p))
+            .collect()
     }
 }